INTEGRATED CIRCUITS DATA SHEET TDA8588J; TDA8588xJ I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Product specification 2004 Feb 24 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ FEATURES Amplifiers • I2C-bus control • Can drive a 2 Ω load with a battery voltage of up to 16 V and a 4 Ω load with a battery voltage of up to 18 V • DC load detection, open, short and present PROTECTION • AC load (tweeter) detection • If connection to the battery voltage is reversed, all regulator voltages will be zero • Programmable clip detect; 1 % or 4 % • Programmable thermal protection pre-warning • Independent short-circuit protection per channel • Able to withstand voltages at the output of up to 18 V (supply line may be short-circuited) • Low gain line driver mode (20 dB) • Thermal protection to avoid thermal breakdown • Loss-of-ground and open VP safe • Load-dump protection • All outputs protected from short-circuit to ground, to VP or across the load • Regulator outputs protected from DC short-circuit to ground or to supply voltage • All pins protected from short-circuit to ground • All regulators protected by foldback current limiting • Soft thermal-clipping to prevent audio holes • Power switches protected from loss-of-ground. • Low battery detection. APPLICATIONS Voltage regulators • Boost amplifier and voltage regulator for car radios and CD/MD players. GENERAL • I2C-bus control • Good stability for any regulator with almost any output capacitor value GENERAL DESCRIPTION Amplifiers • Five voltage regulators (microcontroller, display, mechanical digital, mechanical drive and audio) The TDA8588 has a complementary quad audio power amplifier that uses BCDMOS technology. It contains four amplifiers configured in Bridge Tied Load (BTL) to drive speakers for front and rear left and right channels. The I2C-bus allows diagnostic information of each amplifier and its speaker to be read separately. Both front and both rear channel amplifiers can be configured independently in line driver mode with a gain of 20 dB (differential output). • Choice of non-adjustable 3.3 or 5 V microcontroller supply (REG2) versions reducing risk of overvoltage damage • Choice of non-adjustable 3.3 or 5 V digital signal processor supply (REG3) versions reducing risk of overvoltage damage • Selectable output voltages for regulators 1, 4 and 5 Voltage regulators • Low dropout voltage PNP output stages The TDA8588 has a multiple output voltage regulator with two power switches. • High supply voltage ripple rejection • Low noise for all regulators The voltage regulator contains the following: • Two power switches (antenna switch and amplifier switch) • Four switchable regulators and one permanently active regulator (microcontroller supply) • Regulator 2 (microcontroller supply) operational during load-dump and thermal shut-down • Two power switches with loss-of-ground protection • A reset output that can be used to communicate with a microcontroller. • Low quiescent current (only regulator 2 is operational) • Reset output (push-pull output stage) The quiescent current has a very low level of 150 µA with only regulator 2 active. • Adjustable reset delay time • Backup functionality. 2004 Feb 24 2 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Amplifiers VP1, VP2 operating supply voltage Iq(tot) total quiescent current Po(max) maximum output power 8 − 14.4 18 V 270 400 mA RL = 4 Ω; VP = 14.4 V; VIN = 2 V 44 RMS square wave 46 − W RL = 4 Ω; VP = 15.2 V; VIN = 2 V 49 RMS square wave 52 − W RL = 2 Ω; VP = 14.4 V; VIN = 2 V 83 RMS square wave 87 − W THD total harmonic distortion − 0.01 0.1 % Vn(o)(amp) noise output voltage in amplifier mode − 50 70 µV Vn(o)(LN) noise output voltage in line driver mode − 25 35 µV regulator 1, 3, 4 and 5 on 10 14.4 18 V regulator 2 on 4 − − V Voltage regulators SUPPLY VP Iq(tot) supply voltage total quiescent supply current jump starts for t ≤ 10 minutes − − 30 V load dump protection for t ≤ 50 ms and tr ≤ 2.5 ms − − 50 V overvoltage for shut-down 20 − − V standby mode; VP = 14.4 V − 150 190 µA IB2[D3:D2] = 01 − 8.3 − V IB2[D3:D2] = 10 − 8.5 − V IB2[D3:D2] = 11 − 8.7 − V TDA8588J; TDA8588AJ − 5.0 − V TDA8588BJ − 3.3 − V TDA8588J − 5.0 − V TDA8588AJ; TDA8588BJ − 3.3 − V IB2[D7:D5] = 001 − 5.0 − V IB2[D7:D5] = 010 − 6.0 − V IB2[D7:D5] = 011 − 7.0 − V IB2[D7:D5] = 100 − 8.6 − V VOLTAGE REGULATORS VO(REG1) VO(REG2) VO(REG3) VO(REG4) 2004 Feb 24 output voltage of regulator 1 output voltage of regulator 2 output voltage of regulator 3 output voltage of regulator 4 0.5 mA ≤ IO ≤ 400 mA; selectable via I2C-bus 0.5 mA ≤ IO ≤ 350 mA 0.5 mA ≤ IO ≤ 300 mA maximum current ≥ 1.6 A; 0.5 mA ≤ IO ≤ 800 mA; selectable via I2C-bus 3 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL VO(REG5) PARAMETER output voltage of regulator 5 TDA8588J; TDA8588xJ CONDITIONS MIN. TYP. MAX. UNIT 0.5 mA ≤ IO ≤ 400 mA; selectable via I2C-bus IB1[D7:D4] = 0001 − 6.0 − V IB1[D7:D4] = 0010 − 7.0 − V IB1[D7:D4] = 0011 − 8.2 − V IB1[D7:D4] = 0100 − 9.0 − V IB1[D7:D4] = 0101 − 9.5 − V IB1[D7:D4] = 0110 − 10.0 − V IB1[D7:D4] = 0111 − 10.4 − V IB1[D7:D4] = 1000 − 12.5 − V IB1[D7:D4] = 1001 − VP − 1 − V POWER SWITCHES Vdrop(SW1) dropout voltage of switch 1 IO = 400 mA − 0.6 1.1 V Vdrop(SW2) dropout voltage of switch 2 IO = 400 mA − 0.6 1.1 V ORDERING INFORMATION OUTPUT VOLTAGE(1) PACKAGE TYPE NUMBER TDA8588J TDA8588AJ NAME DESCRIPTION VERSION DBS37P plastic DIL-bent-SIL power package; 37 leads (lead length 6.8 mm) SOT725-1 TDA8588BJ REGULATOR 2 5V 5V 5V 3.3 V 3.3 V 3.3 V Note 1. Permanent output voltage of regulator 2 and output voltage of regulator 3, respectively. 2004 Feb 24 4 REGULATOR 3 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ BLOCK DIAGRAM BUCAP 36 35 TDA8588 ENABLE LOGIC REGULATOR 1 30 REGULATOR 3 31 REGULATOR 4 33 REGULATOR 5 34 Vreg2 SWITCH 1 29 SWITCH 2 27 40 µs RESCAP SCL STB IN1 REG1 REG3 REG4 REG5 SW1 SW2 28 26 32 SDA REG2 TEMPERATURE & LOAD DUMP PROTECTION VOLTAGE REGULATOR REFERENCE VOLTAGE BACKUP SWITCH VP 37 REGULATOR 2 20 2 6 4 25 22 STANDBY/ MUTE 11 I2C-BUS INTERFACE VP1 VP2 DIAG CLIP DETECT/ DIAGNOSTIC 9 MUTE RST GND 26 dB/ 20 dB 7 OUT1+ OUT1− PROTECTION/ DIAGNOSTIC IN2 15 17 MUTE 26 dB/ 20 dB 19 OUT2+ OUT2− PROTECTION/ DIAGNOSTIC IN3 12 5 MUTE 26 dB/ 20 dB 3 OUT3+ OUT3− PROTECTION/ DIAGNOSTIC IN4 14 21 MUTE 26 dB/ 20 dB VP 23 OUT4+ OUT4− PROTECTION/ DIAGNOSTIC TEMPERATURE & LOAD DUMP PROTECTION AMPLIFIER 10 SVR 13 16 SGND ACGND 8 1 5 24 PGND1 PGND3 PGND2/TAB PGND4 Fig.1 Block diagram. 2004 Feb 24 18 mdb586 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ PINNING SYMBOL PIN DESCRIPTION PGND2/TAB 1 power ground 2 and connection for heatsink SDA 2 I2C-bus data input and output OUT3− 3 channel 3 negative output SCL 4 I2C-bus clock input OUT3+ 5 channel 3 positive output VP2 6 power supply voltage 2 to amplifier OUT1− 7 channel 1 negative output PGND1 8 power ground 1 OUT1+ 9 channel 1 positive output SVR 10 half supply voltage filter capacitor IN1 11 channel 1 input IN3 12 channel 3 input SGND 13 signal ground IN4 14 channel 4 input IN2 15 channel 2 input ACGND 16 AC ground OUT2+ 17 channel 2 positive output PGND3 18 power ground 3 OUT2− 19 channel 2 negative output VP1 20 power supply voltage 1 to amplifier OUT4+ 21 channel 4 positive output STB 22 standby or operating or mute mode select input OUT4− 23 channel 4 negative output PGND4 24 power ground 4 DIAG 25 diagnostic and clip detection output, active LOW RST 26 reset output SW2 27 antenna switch; supplies unregulated power to car aerial motor RESCAP 28 reset delay capacitor SW1 29 amplifier switch; supplies unregulated power to amplifier(s) REG1 30 regulator 1 output; supply for audio part of radio and CD player REG3 31 regulator 3 output; supply for signal processor part (mechanical digital) of CD player GND 32 combined voltage regulator, power and signal ground REG4 33 regulator 4 output; supply for mechanical part (mechanical drive) of CD player REG5 34 regulator 5 output; supply for display part of radio and CD player VP 35 power supply to voltage regulator BUCAP 36 connection for backup capacitor REG2 37 regulator 2 output; supply voltage to microcontroller 2004 Feb 24 6 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ PGND2/TAB 1 SDA 2 OUT3− 3 SCL 4 OUT3+ 5 VP2 6 OUT1− 7 PGND1 8 OUT1+ 9 SVR 10 IN1 11 IN3 12 SGND 13 IN4 14 IN2 15 ACGND 16 OUT2+ 17 PGND3 18 OUT2− 19 TDA8588 VP1 20 OUT4+ 21 STB 22 OUT4− 23 PGND4 24 DIAG 25 RST 26 SW2 27 RESCAP 28 SW1 29 REG1 30 REG3 31 GND 32 REG4 33 REG5 34 VP 35 BUCAP 36 REG2 37 001aaa258 Fig.2 Pin configuration. 2004 Feb 24 7 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Power-on reset and supply voltage spikes (see Fig.13 and Fig.14) FUNCTIONAL DESCRIPTION The TDA8588 is a multiple voltage regulator combined with four independent audio power amplifiers configured in bridge tied load with diagnostic capability. The output voltages of all regulators except regulators 2 and 3 can be controlled via the I2C-bus. However, regulator 3 can be set to 0 V via the I2C-bus. The output voltage of regulator 2 (microcontroller supply) and the maximum output voltage of regulator 3 (mechanical digital and microcontroller supplies) can both be either 5 V or 3.3 V depending on the type number. The maximum output voltages of both regulators are fixed to avoid any risk of damaging the microcontroller that may occur during a disturbance of the I2C-bus. If the supply voltage drops too low to guarantee the integrity of the data in the I2C-bus latches, the power-on reset cycle will start. All latches will be set to a pre-defined state, pin DIAG will be pulled LOW to indicate that a power-on reset has occurred, and bit D7 of data byte 2 is also set for the same reason. When D0 of instruction byte 1 is set, the power-on flag resets, pin DIAG is released and the amplifier will then enter its start-up cycle. Diagnostic output Pin DIAG indicates clipping, thermal protection pre-warning of amplifier and voltage regulator sections, short-circuit protection, low and high battery voltage. Pin DIAG is an open-drain output, is active LOW, and must be connected to an external voltage via an external pull-up resistor. If a failure occurs, pin DIAG remains LOW during the failure and no clipping information is available. The microcontroller can read the failure information via the I2C-bus. The amplifier diagnostic functions give information about output offset, load, or short-circuit. Diagnostic functions are controlled via the I2C-bus. The TDA8588 is protected against short-circuit, over-temperature, open ground and open VP connections. If a short-circuit occurs at the input or output of a single amplifier, that channel shuts down, and the other channels continue to operate normally. The channel that has a short-circuit can be disabled by the microcontroller via the appropriate enable bit of the I2C-bus to prevent any noise generated by the fault condition from being heard. AMPLIFIERS Muting A hard mute and a soft mute can both be performed via the I2C-bus. A hard mute mutes the amplifier within 0.5 ms. A soft mute mutes the amplifier within 20 ms and is less audible. A hard mute is also activated if a voltage of 8 V is applied to pin STB. Start-up At power on, regulator 2 will reach its final voltage when the backup capacitor voltage exceeds 5.5 V independently of the voltage on pin STB. When pin STB is LOW, the total quiescent current is low, and the I2C-bus lines are high impedance. Temperature protection When pin STB is HIGH, the I2C-bus is biased on and then the TDA8588 performs a power-on reset. When bit D0 of instruction byte IB1 is set, the amplifier is activated, bit D7 of data byte 2 (power-on reset occurred) is reset, and pin DIAG is no longer held LOW. If the average junction temperature rises to a temperature value that has been set via the I2C-bus, a thermal protection pre-warning is activated making pin DIAG LOW. If the temperature continues to rise, all four channels will be muted to reduce the output power (soft thermal clipping). The value at which the temperature mute control activates is fixed; only the temperature at which the thermal protection pre-warning signal occurs can be specified by bit D4 in instruction byte 3. If implementing the temperature mute control does not reduce the average junction temperature, all the power stages will be switched off (muted) at the absolute maximum temperature Tj(max). Start-up and shut-down timing (see Fig.12) A capacitor connected to pin SVR enables smooth start-up and shut-down, preventing the amplifier from producing audible clicks at switch-on or switch-off. The start-up and shut-down times can be extended by increasing the capacitor value. If the amplifier is shut down using pin STB, the amplifier is muted, the regulators and switches are switched off, and the capacitor connected to pin SVR discharges. The low current standby mode is activated 2 seconds after pin STB goes LOW. 2004 Feb 24 TDA8588J; TDA8588xJ Offset detection Offset detection can only be performed when there is no input signal to the amplifiers, for instance when the external digital signal processor is muted after a start-up. The output voltage of each channel is measured and 8 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator AC-LOAD DETECTION compared with a reference voltage. If the output voltage of a channel is greater than the reference voltage, bit D2 of the associated data byte is set and read by the microcontroller during a read instruction. Note that the value of this bit is only meaningful when there is no input signal and the amplifier is not muted. Offset detection is always enabled. AC-load detection can be used to detect that AC-coupled speakers are connected correctly during assembly. This requires at least 3 periods of a 19 kHz sine wave to be applied to the amplifier inputs. The amplifier produces a peak output voltage which also generates a peak output current through the AC-coupled speaker. The 19 kHz sine wave is also audible during the test. If the amplifier detects three current peaks that are greater than 550 mA, the AC-load detection bit D1 of instruction byte IB1 is set to logic 1. Three current peaks are counted to avoid false AC-load detection which can occur if the input signal is switched on and off. The peak current counter can be reset by setting bit D1 of instruction byte IB1 to logic 0. To guarantee AC-load detection, an amplifier current of more than 550 mA is required. AC-load detection will never occur with a current of less than 150 mA. Figure 3 shows which AC loads are detected at different output voltages. For example, if a load is detected at an output voltage of 2.5 V peak, the load is less than 4 Ω. If no load is detected, the output impedance is more than 14 Ω. Speaker protection If one side of a speaker is connected to ground, a missing current protection is implemented to prevent damage to the speaker. A fault condition is detected in a channel when there is a mismatch between the power current in the high side and the power current in the low side; during a fault condition the channel will be switched off. The load status of each channel can be read via the I2C-bus: short to ground (one side of the speaker connected to ground), short to VP (one side of the speaker connected to VP), and shorted load. Line driver mode An amplifier can be used as a line driver by switching it to low gain mode. In normal mode, the gain between single-ended input and differential output (across the load) is 26 dB. In low gain mode the gain between single-ended input and differential output is 20 dB. mrc331 102 The negative inputs to all four amplifier channels are combined at pin ACGND. To obtain the best performance for supply voltage ripple rejection and unwanted audible noise, the value of the capacitor connected to pin ACGND must be as close as possible to 4 times the value of the input capacitor connected to the positive input of each channel. (1) no load present Zo(load) (Ω) Input and AC ground capacitor values undefined (2) 10 load present Load detection 1 0 DC-LOAD DETECTION When DC-load detection is enabled, during the start-up cycle, a DC-offset is applied slowly to the amplifier outputs, and the output currents are measured. If the output current of an amplifier rises above a certain level, it is assumed that there is a load of less than 6 Ω and bit D5 is reset in the associated data byte register to indicate that a load is detected. 2.5 5 7.5 10 Vo(peak) (V) (1) IO(peak) = < 150 mA. (2) IO(peak) = > 550 mA. Fig.3 Because the offset is measured during the amplifier start-up cycle, detection is inaudible and can be performed every time the amplifier is switched on. 2004 Feb 24 TDA8588J; TDA8588xJ Tolerance of AC-load detection as a function of output voltage. LOAD DETECTION PROCEDURE 1. At start-up, enable the AC- or DC-load detection by setting D1 of instruction byte 1 to logic 1. 9 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator 2. After 250 ms the DC load is detected and the mute is released. This is inaudible and can be implemented each time the IC is powered on. TDA8588J; TDA8588xJ The headroom voltage is the voltage required for correct operation of the amplifier and is defined as the voltage difference between the level of the DC output voltage before the VP voltage drop and the level of VP after the voltage drop (see Fig.4). 3. When the amplifier start-up cycle is completed (after 1.5 s), apply an AC signal to the input, and DC-load bits D5 of each data byte should be read and stored by the microcontroller. At a certain supply voltage drop, the headroom voltage will be insufficient for correct operation of the amplifier. To prevent unwanted audible noises at the output, the headroom protection mode will be activated (see Fig.4). This protection discharges the capacitors connected to pins SVR and ACGND to increase the headroom voltage. 4. After at least 3 periods of the input signal, the load status can be checked by reading AC-detect bits D4 of each data byte. The AC-load peak current counter can be reset by setting bit D1 of instruction byte IB1 to logic 0 and then to logic 1. Note that this will also reset the DC-load detection bits D5 in each data byte. Low headroom protection The normal DC output voltage of the amplifier is set to half the supply voltage and is related to the voltage on pin SVR. An external capacitor is connected to pin SVR to suppress power supply ripple. If the supply voltage drops (at vehicle engine start), the DC output voltage will follow slowly due to the affect of the SVR capacitor. V (V) 14 VP vehicle engine start headroom voltage SVR voltage 8.4 7 amplifier DC output voltage t (sec) mdb515 Fig.4 Amplifier output during supply voltage. 2004 Feb 24 10 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ VOLTAGE REGULATORS Backup capacitor The voltage regulator section contains: • Four switchable regulators and one permanent active regulator The backup capacitor is used as a backup supply for the regulator 2 output when the battery supply voltage (VP) cannot support the regulator 2 voltage. • Two power switches with loss-of-ground protection Backup function • Reset push-pull output The backup function is implemented by a switch function, which behaves like an ideal diode between pins VP and BUCAP; the forward voltage of this ideal diode depends on the current flowing through it. The backup function supplies regulator 2 during brief periods when no supply voltage is present on pin VP. It requires an external capacitor to be connected to pin BUCAP and ground. When the supply voltage is present on pin VP this capacitor will be charged to a level of VP − 0.3 V. When the supply voltage is absent from pin VP, this charge can then be used to supply regulator 2 for a brief period (tbackup) calculated using the formula: • Backup functionality. The quiescent current condition has a very low current level of 150 µA typical with only regulator 2 active. The TDA8588 uses low dropout voltage regulators for use in low voltage applications. All of the voltage regulators except for the standby regulator can be controlled via the I2C-bus. The voltage regulator section of this device has two power switches which are capable of delivering unregulated 400 mA continuous current, and has several fail-safe protection modes. It conforms to peak transient tests and protects against continuous high voltage (24 V), short-circuits and thermal stress. A reset warning signal is asserted if regulator 2 is out of regulation. Regulator 2 will try to maintain output for as long as possible even if a thermal shut-down or any other fault condition occurs. During overvoltage stress conditions, all outputs except regulator 2 will switch off and the device will be able to supply a minimum current for an indefinite amount of time sufficient for powering the memory of a microcontroller. Provision is made for an external reserve supply capacitor to be connected to pin BUCAP which can store enough energy to allow regulator 2 to supply a microcontroller for a period long enough for it to prepare for a loss-of-voltage. V P – ( V O ( REG2 ) – 0.5 ) t backup = C backup × R L × --------------------------------------------------------- V O ( REG2 ) Example: VP = 14.4 V, VO(REG2) = 5 V, RL = 1 kΩ and Cbackup = 100 µF provides a tbackup of 177 ms. When an overvoltage condition occurs, the voltage on pin BUCAP is limited to approximately 24 V; see Fig.5. Regulator 2 Regulator 2 is intended to supply the microcontroller and has a low quiescent current. This supply cannot be shut down in response to overvoltage stress conditions, and is not I2C-bus controllable to prevent the microcontroller from being damaged by overvoltage which could occur during a disturbance of the I2C-bus. This supply will not shut down during load dump transients or during a high thermal-protection condition. 2004 Feb 24 11 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator V (V) TDA8588J; TDA8588xJ VP VBUCAP VO(REG2) t (sec) tbackup out of regulation mdb512 V P – V O ( REG2 ) – 0.5 t backup = C backup × ---------------------------------------------------- IL Fig.5 Backup capacitor function. Reset output Power switches A reset pulse is generated at pin RST when the output voltage of regulator 2 rises above the reset threshold value. The reset output is a push-pull output that both sources and sinks current. The output voltage can switch between ground and VO(REG2), and operates at a low regulator 2 voltage or VBUCAP. The RST signal is controlled by a low-voltage detection circuit which, when activated, pulls pin RST LOW (reset active) when VO(REG2) is ≤ Vth(rst). If VO(REG2) ≥ Vth(rst), pin RST goes HIGH. The reset pulse is delayed by 40 µs internally. To extend the delay and to prevent oscillations occurring at the threshold voltage, an external capacitor can be connected to pin RESCAP. Note that a reset pulse is not generated when VO(REG2) falls below the reset threshold value. There are two power switches that provide an unregulated DC voltage output for amplifiers and an aerial motor respectively. The switches have internal protection for over-temperature conditions and are activated by setting bits D2 and D3 of instruction byte IB1 to logic 1. The regulated outputs will supply pulsed current loads that can contaminate the line with high frequency noise, so it is important to prevent any cross-coupling between the regulated outputs, particularly with the 8.3 V audio supply, and the unregulated outputs. In the ON state, the switches have a low impedance to the battery voltage. When the battery voltage is higher than 22 V, the switches are switched off. When the battery voltage is below 22 V the switches are set to their original condition. Reset delay capacitor A Reset Delay Capacitor (RDC) connected to pin RESCAP can be used to extend the delay period of the reset pulse and to ensure that a clean reset signal is sent to the microcontroller. The RDC is charged by a current source. The reset output (pin RST) will be released (pin RST goes HIGH) when the RDC voltage crosses the RDC threshold value. 2004 Feb 24 12 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ Protection Temperature protection All regulator and switch outputs are fully protected by foldback current limiting against load dumps and short-circuits; see Fig.6. During a load dump all regulator outputs, except the output of regulator 2, will go low. If the junction temperature of a regulator becomes too high, the amplifier(s) are switched off to prevent unwanted noise signals being audible. A regulator junction temperature that is too high is indicated by pin DIAG going LOW and is also indicated by setting bit D6 in data byte 2. The power switches can withstand ‘loss-of-ground’. This means that if pin GND becomes disconnected, the switch is protected by automatically connecting its outputs to ground. handbook, full pagewidth If the junction temperature of the regulator continues to rise and reaches the maximum temperature protection level, all regulators and switches will be disabled except regulator 2. VO(REGn) Isc Ilimit IO(REGn) MDB513 Fig.6 Foldback current protection. 2004 Feb 24 13 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ I2C-BUS SPECIFICATION 0 = write 1 = read handbook, halfpage MSB 1 LSB 1 0 1 1 0 0 R/W MDB516 Fig.7 Address byte. If address byte bit R/W = 0, the TDA8588 expects 3 instruction bytes: IB1, IB2 and IB3; see Table 1 to Table 6. After a power-on, all instruction bits are set to zero. If address byte bit R/W = 1, the TDA8588 will send 4 data bytes to the microcontroller: DB1, DB2, DB3 and DB4; see Table 7 to Table 10. SDA SDA SCL SCL S P START condition STOP condition Fig.8 Definition of start and stop conditions. SDA SCL data line stable; data valid change of data allowed Fig.9 Bit transfer. 2004 Feb 24 14 MBA607 MBA608 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ I2C-WRITE SCL 1 SDA MSB 2 MSB − 1 S 7 8 LSB + 1 ADDRESS 9 ACK 1 MSB A W 2 7 LSB + 1 MSB − 1 8 LSB WRITE DATA 9 ACK A P To stop the transfer, after the last acknowledge (A) a stop condition (P) must be generated I2C-READ SCL 1 SDA MSB 2 MSB − 1 S 7 8 LSB + 1 ACK R ADDRESS 9 A 1 MSB 2 7 MSB − 1 READ DATA : generated by slave (TDA8588) : start P : stop A : acknowledge R/W ACK A P mce641 : read / write Fig.10 I2C-bus read and write modes. 2004 Feb 24 LSB 9 To stop the transfer, the last byte must not be acknowledged and a stop condition (P) must be generated : generated by master (microcontroller) S LSB + 1 8 15 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Table 1 Instruction byte IB1 BIT D7 D6 TDA8588J; TDA8588xJ Table 3 BIT DESCRIPTION D7 regulator 5 output voltage control (see Table 2) D6 D5 D5 D4 D4 D3 Instruction byte IB2 DESCRIPTION regulator 4 output voltage control (see Table 4) regulator 3 (mechanical digital) control 0 = regulator 3 off SW2 control 1 = regulator 3 on 0 = SW2 off D3 1 = SW2 on D2 D2 SW1 control D1 0 = SW1 off 1 = SW1 on D1 regulator 1 output voltage control (see Table 5) soft mute all amplifier channels (mute delay 20 ms) 0 = mute off AC- or DC-load detection switch 1 = mute on 0 = AC- or DC-load detection off; resets DC-load detection bits and AC-load detection peak current counter D0 hard mute all amplifier channels (mute delay 0.4 ms) 0 = mute off 1 = AC- or DC-load detection on D0 1 = mute on amplifier start enable (clear power-on reset flag; D7 of DB2) Table 4 0 = amplifier OFF; pin DIAG remains LOW 1 = amplifier ON; when power-on occurs, bit D7 of DB2 is reset and pin DIAG is released Table 2 BIT OUTPUT (V) Regulator 5 (display) output voltage control BIT OUTPUT (V) D7 D6 D5 D4 0 0 0 0 0 (off) 0 0 0 1 6.0 0 0 1 0 7.0 0 0 1 1 8.2 0 1 0 0 9.0 0 1 0 1 9.5 0 1 1 0 10.0 0 1 1 1 10.4 1 0 0 0 12.5 1 0 0 1 ≤ VP − 1 (switch) 2004 Feb 24 Regulator 4 (mechanical drive) output voltage control D7 D6 D5 0 0 0 0 (off) 0 0 1 5 0 1 0 6 0 1 1 7 1 0 0 8.6 Table 5 Regulator 1 (audio) output voltage control BIT OUTPUT (V) 16 D3 D2 0 0 0 (off) 0 1 8.3 1 0 8.5 1 1 8.7 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Table 6 Instruction byte IB3 BIT D7 D6 TDA8588J; TDA8588xJ Table 7 BIT DESCRIPTION D7 clip detection level 1 = 1 % detection level 1 = junction temperature above pre-warning level amplifier channels 1 and 2 gain select D6 1 = junction temperature above 175 °C amplifier channels 3 and 4 gain select D5 1 = no DC load detected amplifier thermal protection pre-warning D4 0 = warning at 145 °C 1 = AC load detected disable channel 1 D3 0 = enable channel 1 channel 4 load short-circuit 0 = normal load 1 = disable channel 1 1 = short-circuit load disable channel 2 D2 0 = enable channel 2 channel 4 output offset 0 = no output offset 1 = disable channel 2 1 = output offset disable channel 3 D1 0 = enable channel 3 channel 4 VP short-circuit 0 = no short-circuit to VP 1 = disable channel 3 D0 channel 4 AC load detection 0 = no AC load detected 1 = warning at 122 °C D1 channel 4 DC load detection 0 = DC load detected 1 = 20 dB gain (line driver mode) D2 amplifier maximum thermal protection 0 = junction temperature below 175 °C 0 = 26 dB gain (normal mode) D3 amplifier thermal protection pre-warning 0 = no warning 1 = 20 dB gain (line driver mode) D4 DESCRIPTION 0 = 4 % detection level 0 = 26 dB gain (normal mode) D5 Data byte DB1 1 = short-circuit to VP disable channel 4 D0 0 = enable channel 4 channel 4 ground short-circuit 0 = no short-circuit to ground 1 = disable channel 4 1 = short-circuit to ground 2004 Feb 24 17 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Table 8 Data byte DB2 BIT D7 D6 TDA8588J; TDA8588xJ Table 9 BIT DESCRIPTION − 0 = amplifier on D6 − 1 = POR has occurred; amplifier off D5 channel 2 DC load detection 0 = DC load detected regulator thermal protection pre-warning 1 = no DC load detected D4 1 = regulator temperature too high; amplifier off 1 = AC load detected D3 1 = no DC load detected 1 = short-circuit load D2 1 = AC load detected 1 = output offset D1 1 = short-circuit load 1 = short-circuit to VP D0 1 = output offset 1 = short-circuit to ground 1 = short-circuit to VP channel 3 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground 2004 Feb 24 channel 2 ground short-circuit 0 = no short-circuit to ground channel 3 VP short-circuit 0 = no short-circuit to VP D0 channel 2 VP short-circuit 0 = no short-circuit to VP channel 3 output offset 0 = no output offset D1 channel 2 output offset 0 = no output offset channel 3 load short-circuit 0 = normal load D2 channel 2 load short-circuit 0 = normal load channel 3 AC load detection 0 = no AC load detected D3 channel 2 AC load detection 0 = no AC load detected channel 3 DC load detection 0 = DC load detected D4 DESCRIPTION D7 Power-on reset occurred or amplifier status 0 = no warning D5 Data byte DB3 18 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator Table 10 Data byte DB4 BIT DESCRIPTION D7 − D6 − D5 channel 1 DC load detection 0 = DC load detected 1 = no DC load detected D4 channel 1 AC load detection 0 = no AC load detected 1 = AC load detected D3 channel 1 load short-circuit 0 = normal load 1 = short-circuit load D2 channel 1 output offset 0 = no output offset 1 = output offset D1 channel 1 VP short-circuit 0 = no short-circuit to VP 1 = short-circuit to VP D0 channel 1 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground 2004 Feb 24 19 TDA8588J; TDA8588xJ Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VP PARAMETER supply voltage CONDITION MIN. MAX. UNIT operating − 18 V not operating −1 +50 V with load dump protection 0 50 V operating 0 7 V VIN, VSVR, VACGND, VDIAG voltage on pins INn, SVR, ACGND and DIAG operating 0 13 V VSDA, VSCL voltage on pins SDA and SCL VSTB voltage on pin STB 0 24 V IOSM non-repetitive peak output current operating − 10 A IORM repetitive peak output current − 6 A Vsc AC and DC short-circuit voltage short-circuit of output pins across loads and to ground or supply − 18 V Vrp reverse polarity voltage voltage regulator only − −18 V Ptot total power dissipation Tcase = 70 °C − 80 W °C Tj junction temperature − 150 Tstg storage temperature −55 +150 °C Tamb ambient temperature −40 +85 Vesd electrostatic discharge voltage note 1 − 2000 V note 2 − 200 °C V Notes 1. Human body model: Rs = 1.5 kΩ; C = 100 pF; all pins have passed all tests to 2500 V to guarantee 2000 V, according to class II. 2. Machine model: Rs = 10 Ω; C = 200 pF; L = 0.75 mH; all pins have passed all tests to 250 V to guarantee 200 V, according to class II. 2004 Feb 24 20 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ THERMAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS VALUE UNIT Rth(j-a) thermal resistance from junction to ambient in free air 40 K/W Rth(j-c) thermal resistance from junction to case see Fig.11 0.75 K/W Virtual junction handbook, halfpage Amplifier Voltage regulator 0.5 K/W 1 K/W 0.2 K/W Case MDB514 Fig.11 Equivalent thermal resistance network. QUALITY SPECIFICATION In accordance with “General Quality Specification for Integrated Circuits SNW-FQ-611D”. 2004 Feb 24 21 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ CHARACTERISTICS Amplifier section Tamb = 25 °C; VP = 14.4 V; RL = 4 Ω; measured in the test circuit Fig.26; unless otherwise specified. SYMBOL PARAMETER CONDITION MIN. TYP. MAX. UNIT Supply voltage behaviour VP1, VP2 operating supply voltage RL = 4 Ω 8 14.4 18 V RL = 2Ω 8 14.4 16 V no load − 280 400 mA Iq(tot) total quiescent current Istb standby current − 10 50 µA VO DC output voltage − 7.2 − V VP(mute) low supply voltage mute 6.5 7 8 V Vhr headroom voltage when headroom protection is activated; see Fig.4 − 1.4 − V VPOR power-on reset voltage see Fig.13 − 5.5 − V VOO output offset voltage mute mode and power on −100 0 +100 mV Mode select (pin STB) Vstb standby mode voltage − − 1.3 V Voper operating mode voltage 2.5 − 5.5 V Vmute mute mode voltage II input current 8 − VP V VSTB = 5 V − 4 25 µA Start-up, shut-down and mute timing twake wake-up time from standby before first I2C-bus transmission is recognised via pin STB; see Fig.12 − 300 500 µs tmute(off) time from amplifier switch-on to mute release via I2C-bus (IB1 bit D0); CSVR = 22 µF; see Fig.12 − 250 − ms td(mute-on) delay from mute to on soft mute; via I2C-bus (IB2 bit D1 = 1 to 0) 10 25 40 ms hard mute; via I2C-bus (IB2 bit D0 = 1 to 0) 10 25 40 ms via pin STB; VSTB = 4 to 8 V 10 25 40 ms soft mute; via (IB2 bit D1 = 0 to 1) 10 25 40 ms hard mute; via I2C-bus (IB2 bit D0 = 0 to 1) − 0.4 1 ms via pin STB; VSTB = 4 to 8 V − 0.4 1 ms td(on-mute) delay from on to mute I2C-bus I2C-bus interface VIL LOW-level input voltage on pins SCL and SDA − − 1.5 V VIH HIGH-level input voltage on pins SCL and SDA 2.3 − 5.5 V VOL LOW-level output voltage on pin SDA − − 0.4 V 2004 Feb 24 IL = 3 mA 22 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL fSCL PARAMETER TDA8588J; TDA8588xJ CONDITION SCL clock frequency MIN. TYP. MAX. UNIT − − 400 kHz − − 0.8 V ± 1.5 ±2 ± 2.5 V Diagnostic VDIAG diagnostic pin LOW output voltage Vo(offset) output voltage when offset is detected THDclip THD clip detection level fault condition; IDIAG = 200 µA IB3 bit D7 = 0 − 4 − % IB3 bit D7 = 1 − 1 − % 135 145 155 °C Tj(warn) average junction temperature for pre-warning IB3 bit D4 = 0 IB3 bit D4 = 1 112 122 132 °C Tj(mute) average junction temperature for 3 dB muting VIN = 0.05 V 150 160 170 °C Tj(off) average junction temperature when all outputs are switched off 165 175 185 °C Zo(load) impedance when a DC load is detected − − 6 Ω Zo(open) impedance when an open DC load is detected 500 − − Ω Io(load) amplifier current when an AC load is detected 550 − − mA Io(open) amplifier current when an open AC load is detected − − 150 mA Amplifier Po THD 2004 Feb 24 output power total harmonic distortion RL = 4 Ω; VP = 14.4 V; THD = 0.5 % 20 21 − W RL = 4 Ω; VP = 14.4 V; THD = 10 % 27 28 − W RL = 4 Ω; VP = 14.4 V; VIN = 2 V RMS square wave (maximum power) 44 46 − W RL = 4 Ω; VP = 15.2 V; VIN = 2 V RMS square wave (maximum power) 49 52 − W RL = 2 Ω; VP = 14.4 V; THD = 0.5 % 37 41 − W RL = 2 Ω; VP = 14.4 V; THD = 10 % 51 55 − W RL = 2 Ω; VP = 14.4 V; VIN = 2 V RMS square wave (maximum power) 83 87 − W Po = 1 W to 12 W; f = 1 kHz; RL = 4 Ω − 0.01 0.1 % Po = 1 W to 12 W; f = 10 kHz − 0.2 0.5 % Po = 4 W; f = 1 kHz − 0.01 0.03 % line driver mode; Vo = 2 V (RMS); f = 1 kHz; RL = 600 Ω − 0.01 0.03 % 23 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL PARAMETER TDA8588J; TDA8588xJ CONDITION MIN. TYP. MAX. UNIT f = 1 Hz to 10 kHz; Rsource = 600 Ω 50 60 − dB αcs channel separation (crosstalk) Po = 4 W; f = 1 kHz − 80 − dB SVRR supply voltage ripple rejection f = 100 Hz to 10 kHz; Rsource = 600 Ω 55 70 − dB CMRR common mode ripple rejection amplifier mode; Vcommon = 0.3 V (p-p); f = 1 kHz to 3 kHz; Rsource = 0 Ω 40 70 − dB Vcm(max)(rms) maximum common mode voltage level (rms value) f = 1 kHz − − 0.6 V Vn(o)(LN) noise output voltage in line driver mode filter 20 Hz to 22 kHz; Rsource = 600 Ω − 25 35 µV Vn(o)(amp) noise output voltage in amplifier mode filter 20 Hz to 22 kHz; Rsource = 600 Ω − 50 70 µV Gv(amp) voltage gain in amplifier mode single-ended in to differential out 25 26 27 dB Gv(LN) voltage gain in line driver mode single-ended in to differential out 19 20 21 dB Zi input impedance CIN = 220 nF 55 70 − kΩ αmute mute attenuation VO(on)/VO(mute) 80 90 − dB Vo(mute) output voltage mute VIN = 1 V (RMS) − 70 − µV Bp power bandwidth −1 dB; THD = 1 % − 20 − kHz Voltage regulator section Tamb = 25 °C; VP = 14.4 V; measured in the test circuit Fig.26; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage regulator 1, 3, 4 and 5 on 10.0 14.4 18 V regulator 2 Iq(tot) total quiescent supply current switched on 4 − − V in regulation 6.3 − 50 V overvoltage for shut-down 18.1 22 − V standby mode; note 1 − 150 190 µA Reset output (push-pull stage, pin RST) VREG2(th)(r) rising threshold voltage of regulator 2 VP is rising; IO(REG2) = 50 mA VO(REG2) − 0.2 VO(REG2) − 0.1 VO(REG2) − 0.04 V VREG2(th)(f) falling threshold voltage of regulator 2 VP is falling; IO(REG2) = 50 mA VO(REG2) − 0.25 VO(REG2) − 0.15 VO(REG2) − 0.1 V Isink(L) LOW-level sink current VRST ≤ 0.8 V 1 − − mA Isource(H) HIGH-level source current VRST = VO(REG2) − 0.5 V; VP = 14.4 V 200 600 − µA tr rise time note 2 − 2 50 µs tf fall time note 2 − 10 50 µs 2004 Feb 24 24 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL PARAMETER TDA8588J; TDA8588xJ CONDITIONS MIN. TYP. MAX. UNIT Reset delay (pin RESCAP) Ich charge current VRESCAP = 0 V 1 4 8 µA Idch discharge current VRESCAP = 3 V; VP ≥ 4.3 V 1 7 − mA Vth(rst) reset signal threshold voltage TDA8588AJ and TDA8588J 2.5 3 3.5 V td(rst) reset signal delay TDA8588BJ 1.6 2.1 2.6 V without CRESCAP; note 3 − 40 − µs CRESCAP = 47 nF; note 3; see Fig.15 15 35 100 ms IB2[D3:D2] = 01 7.9 8.3 8.7 V IB2[D3:D2] = 10 8.1 8.5 8.9 V IB2[D3:D2] = 11 8.3 8.7 9.1 V − − 50 mV Regulator 1: REG1 (audio; IO = 5 mA) VO(REG1) VO(LN) output voltage line regulation voltage 0.5 mA ≤ IO ≤ 400 mA; 12 V < VP < 18 V; 12 V ≤ VP ≤ 18 V VO(load) load regulation voltage 5 mA ≤ IO ≤ 400 mA − − 100 mV SVRR supply voltage ripple rejection fripple = 120 Hz; Vripple = 2 V (p-p) 50 60 − dB Vdrop dropout voltage VP = 7.5 V; note 4 IO = 200 mA − 0.4 0.8 V IO = 400 mA − 0.6 2.5 V Ilimit current limit VO ≥ 7 V; note 5 400 700 − mA Isc short-circuit current RL ≤ 0.5 Ω; note 6 70 190 − mA TDA8588AJ and TDA8588J 4.75 5.0 5.25 V TDA8588BJ 3.1 3.3 3.5 V − 3 50 mV Regulator 2: REG2 (microprocessor; IO = 5 mA) VO(REG2) VO(LN) output voltage line regulation voltage 0.5 mA ≤ IO ≤ 350 mA; 10 V ≤ VP ≤ 18 V 10 V ≤ VP ≤ 18 V VO(load) load regulation voltage 0.5 mA ≤ IO ≤ 300 mA − − 100 mV SVRR supply voltage ripple rejection fripple = 120 Hz; Vripple = 2 V (p-p) 40 50 − dB 2004 Feb 24 25 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL Vdrop PARAMETER dropout voltage TDA8588J; TDA8588xJ CONDITIONS MIN. TYP. MAX. UNIT IO = 200 mA VBUCAP = 4.75 V; note 7 TDA8588AJ and TDA8588J − 0.5 0.8 V TDA8588BJ − 1.75 2 V TDA8588AJ and TDA8588J − 0.5 1.3 V TDA8588BJ − 1.75 2.7 V IO = 350 mA; VBUCAP = 4.75 V; note 7 Ilimit current limit VO ≥ 2.8 V; note 5 400 1000 − mA Isc short-circuit current RL ≤ 0.5 Ω; note 6 160 300 − mA TDA8588AJ and TDA8588BJ 3.1 3.3 3.5 V TDA8588J 4.75 5.0 5.25 V − 3 50 mV Regulator 3: REG3 (mechanical digital; IO = 5 mA) VO(REG3) VO(LN) output voltage line regulation voltage 0.5 mA ≤ IO ≤ 300 mA; 10 V ≤ VP ≤ 18 V 10 V ≤ VP ≤ 18 V VO(load) load regulation voltage 0.5 mA ≤ IO ≤ 300 mA − − 100 mV SVRR supply voltage ripple rejection fripple = 120 Hz; Vripple = 2 V (p-p) 50 65 − dB Vdrop dropout voltage VP = 4.75 V; IO = 200 mA; note 4 TDA8588AJ and TDA8588BJ − 1.45 1.65 V TDA8588J − 0.4 0.8 V TDA8588AJ and TDA8588BJ − 1.45 1.65 V TDA8588J − 0.4 1.5 V VP = 4.75 V; IO = 300 mA; note 4 Ilimit current limit VO ≥ 2.8 V; note 5 400 700 − mA Isc short-circuit current RL ≤ 0.5 Ω; note 6 135 210 − mA IB2[D7:D5] = 001 4.75 5.0 5.25 V IB2[D7:D5] = 010 5.7 6.0 6.3 V IB2[D7:D5] = 011 6.6 7.0 7.4 V Regulator 4: REG4 (mechanical drive; IO = 5 mA) VO(REG4) output voltage 0.5 mA ≤ IO ≤ 800 mA; 10 V ≤ VP ≤ 18 V IB2[D7:D5] = 100 VO(LN) 2004 Feb 24 line regulation voltage 10 V ≤ VP ≤ 18 V 26 8.1 8.6 9.1 V − 3 50 mV Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL PARAMETER TDA8588J; TDA8588xJ CONDITIONS MIN. TYP. MAX. UNIT VO(load) load regulation voltage 0.5 mA ≤ IO ≤ 400 mA − − 100 mV SVRR supply voltage ripple rejection fripple = 120 Hz; Vripple = 2 V (p-p) 50 65 − dB Vdrop dropout voltage VP = VO(REG4) − 0.5 V; IO = 800 mA; note 4 − 0.6 1 V IO(peak) peak output current t ≤ 3 s; VO = 4 V 1 1.5 − A Ilimit limit current VO ≥ 4 V; t ≤ 100 ms; VP ≥ 11.5 V; note 5 1.5 2 − A Isc short-circuit current RL ≤ 0.5 Ω ; note 6 240 400 − mA 10 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0001 5.7 6.0 6.3 V 10 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0010 6.65 7.0 7.37 V 10 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0011 7.8 8.2 8.6 V 10.5 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0100 8.55 9.0 9.45 V 11 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0101 9.0 9.5 10.0 V 11.5 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0110 9.5 10.0 10.5 V 13 V ≤ VP ≤ 18 V; IB1[D7:D4] = 0111 9.9 10.4 10.9 V 14.2 V ≤ VP ≤ 18 V; IB1[D7:D4] = 1000 11.8 12.5 13.2 V 12.5 V ≤ VP ≤ 18 V; IB1[D7:D4] = 1001 VP − 1 − − V Regulator 5: REG5 (display; IO = 5 mA) VO(REG5) output voltage 0.5 mA ≤ IO ≤ 400 mA VO(LN) line regulation voltage 10 V ≤ VP ≤ 18 V − 3 50 mV VO(load) load regulation voltage 0.5 mA ≤ IO ≤ 400 mA − − 100 mV SVRR supply voltage ripple rejection fripple = 120 Hz; Vripple = 2 V (p-p) 50 60 − dB Vdrop dropout voltage VP = VO(REG5) − 0.5 V; note 4 IO = 300 mA − 0.4 0.8 V IO = 400 mA − 0.5 2.3 V Ilimit limit current VO ≥ 5.5 V; note 5 400 950 − mA Isc short-circuit current RL ≤ 0.5 Ω; note 6 100 200 − mA IO = 300 mA − 0.6 0.8 V IO = 400 mA − 0.6 1.1 V V ≥ 8.5 V 0.5 1 − A Power switch 1: SW1 (antenna) Vdrop(SW1) dropout voltage Ilimit limit current 2004 Feb 24 27 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator SYMBOL PARAMETER TDA8588J; TDA8588xJ CONDITIONS MIN. TYP. MAX. UNIT Power switch 2: SW2 (amplifier) Vdrop(SW2) Ilimit dropout voltage limit current IO = 300 mA − 0.6 0.8 V IO = 400 mA − 0.6 1.1 V VO ≥ 8.5 V 0.5 1 − A Backup switch IDC(BU) continuous current VBUCAP ≥ 6 V 0.4 1.5 − A Vclamp(BU) clamping voltage VP = 30 V; IO(REG2) = 100 mA − 24 28 V Vdrop dropout voltage IO = 500 mA; (VP − VBUCAP) − 0.6 0.8 V Notes 1. The quiescent current is measured in standby mode when RL = ∞. 2. The rise and fall times are measured with a 50 pF load capacitor. 3. The reset delay time depends on the value of the reset delay capacitor: C RESCAP 3 t d ( rst ) = ------------------------ × V th ( rst ) = C RESCAP × ( 750 × 10 ) [ s ] I ch 4. The dropout voltage of a regulator is the voltage difference between VP and VO(REGn). 5. At current limit, VO(REGn) is held constant (see Fig.6). 6. The foldback current protection limits the dissipation power at short-circuit (see Fig.6). 7. The dropout voltage of regulator 2 is the voltage difference between VBUCAP and VO(REG2). 2004 Feb 24 28 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ Vp DIAG VO(REG3) Regulator switched off when amplifier is completely muted Amplifier status DB2 bit D7 IB1 bit D0 IB2 bit D4 twake STB SVR tmute(off) Soft mute Amplifier output Soft mute mrc350 Fig.12 Start-up and shut-down timing. 2004 Feb 24 29 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ handbook, full pagewidth VO (V) 14.4 Vp Headroom protection activated: 1) fast mute 2) discharge of SVR Low Vp mute activated 8.8 8.6 Output voltage Headroom voltage 7.2 Low Vp mute released SVR voltage 3.5 DIAG DB2 bit D7 VO(REG3) MRC348 Fig.13 Low VP behaviour at VP > 5.5 V. 2004 Feb 24 30 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator VO (V) 14.4 Vp TDA8588J; TDA8588xJ Low Vp mute activated POR activated 8.8 8.6 7.2 5.5 3.5 SVR voltage DIAG DB2 bit D7 POR has occured VO(REG3) mrc349 Fig.14 Low VP behaviour at VP < 5.5 V. 2004 Feb 24 31 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator V (V) TDA8588J; TDA8588xJ VP Vth(rst) VO(REG2) VRST t (sec) td(rst) mdb511 Fig.15 Reset delay function. 2004 Feb 24 32 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ Performance diagrams THD AS A FUNCTION OF OUTPUT POWER Po AT DIFFERENT FREQUENCIES MRC345 102 handbook, full pagewidth THD (%) 10 1 (1) 10−1 10−2 (2) (3) 10−3 10−2 (1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz. 10−1 1 VP = 14.4 V. RL = 4 Ω. Fig.16 THD as a function of Po. 2004 Feb 24 33 10 Po (W) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ THD AS A FUNCTION OF FREQUENCY AT DIFFERENT OUTPUT POWERS MRC344 10 handbook, full pagewidth THD (%) 1 10−1 10−2 (1) (2) 10−3 10−2 (1) Po = 1 W. (2) Po = 10 W. 10−1 1 VP = 14.4 V. RL = 4 Ω. Fig.17 THD as a function of frequency. 2004 Feb 24 34 10 f (kHz) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ LINE DRIVER MODE MRC329 1 handbook, full pagewidth THD (%) 10−1 10−2 10−3 10−1 1 10 VP = 14.4 V. RL = 600 Ω. f = 1 kHz. Fig.18 THD as a function of Vo in balanced line driver mode. 2004 Feb 24 35 Vo(rms) (V) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ OUTPUT POWER AS A FUNCTION OF FREQUENCY AT DIFFERENT THD LEVELS MRC330 30 handbook, full pagewidth Po (W) (1) 28 26 (2) 24 22 (3) 20 10−2 (1) THD = 10 %. (2) THD = 5 %. (3) THD = 0.5 %. 10−1 1 VP = 14.4 V. Fig.19 Po as a function of frequency; RL = 4 Ω. 2004 Feb 24 36 10 f (kHz) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ MRC335 60 handbook, full pagewidth Po (W) (1) 55 (2) 50 45 (3) 40 35 10−2 (1) THD = 10 %. (2) THD = 5 %. (3) THD = 0.5 %. 10−1 1 VP = 14.4 V. Fig.20 Po as a function of frequency; RL = 2 Ω. 2004 Feb 24 37 10 f (kHz) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ OUTPUT POWER (PO) AS A FUNCTION OF SUPPLY VOLTAGE (VP) 001aaa283 100 Po (W) 80 (1) 60 (2) 40 (3) 20 0 8 10 12 14 16 18 20 VP (V) (1) Maximum power. (2) THD = 10 %. (3) THD = 0.5 %. f = 1 kHz. Fig.21 Po as a function of supply voltage; RL = 4 Ω. 2004 Feb 24 38 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ MRC332 100 handbook, full pagewidth Po (W) (1) 80 60 (2) (3) 40 20 0 8 (1) Maximum power. (2) THD = 10 %. (3) THD = 0.5 %. 12 16 f = 1 kHz. Fig.22 Po as a function of supply voltage; RL = 2 Ω. 2004 Feb 24 39 Vp (V) 20 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ SUPPLY VOLTAGE RIPPLE REJECTION IN OPERATING AND MUTE MODES MRC333 80 handbook, full pagewidth SVRR (dB) 76 72 (1) 68 (2) 64 60 10−1 VP = 14.4 V. RL = 4 Ω. Vripple = 2 V (p-p). Rsource = 600 Ω. 1 (1) Operating mode. (2) Mute mode. Fig.23 SVRR as a function of frequency. 2004 Feb 24 40 f (kHz) 10 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ CHANNEL SEPARATION AS A FUNCTION OF FREQUENCY MRC351 100 handbook, full pagewidth αcs (dB) 90 80 70 60 50 10−2 10−1 1 VP = 14.4 V. RL = 4 Ω. Po = 4 W. Rsource = 600 Ω. Fig.24 Channel separation. 2004 Feb 24 41 10 f (kHz) 102 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ POWER DISSIPATION AND EFFICIENCY MRC342 50 handbook, full pagewidth Ptot (W) 40 30 20 10 0 0 10 20 Po (W) VP = 14.4 V. RL = 4 Ω. f = 1 kHz. Fig.25 Amplifier dissipation as a function of output power; all channels driven. 2004 Feb 24 42 30 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ MRC343 100 handbook, full pagewidth η (%) 80 60 40 20 0 0 8 16 24 32 Po (W) VP = 14.4 V. RL = 4 Ω. f = 1 kHz. Fig.26 Amplifier efficiency as a function of output power; all channels driven. 2004 Feb 24 43 40 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ APPLICATION AND TEST INFORMATION BUCAP 37 REG2 REGULATOR 2 1000 µF (16 V) 36 220 nF VP 220 µF (16 V) 100 nF TEMPERATURE & LOAD DUMP PROTECTION VOLTAGE REGULATOR REFERENCE VOLTAGE BACKUP SWITCH 14.4 V microcontroller 10 µF (50 V) 35 30 REG1 REGULATOR 1 audio 10 µF (50 V) 220 nF TDA8588 100 nF mechanical digital 31 REG3 REGULATOR 3 10 µF (50 V) ENABLE LOGIC 100 nF mechanical drive 33 REG4 REGULATOR 4 10 µF (50 V) 100 nF 34 REG5 REGULATOR 5 Vreg2 display 10 µF (50 V) SWITCH 1 100 nF 29 SW1 amplifiers 10 µF (50 V) SWITCH 2 40 µs RESCAP 100 nF 27 SW2 aerial motor 10 µF (50 V) 28 100 nF 26 RST 47 nF microcontroller 32 GND SDA SCL STB 20 VP1 2 25 DIAG 22 14.4 V 6 VP2 4 I2C-BUS INTERFACE STANDBY/ MUTE CLIP DETECT/ DIAGNOSTIC 10 kΩ 220 nF (1) 220 nF 2200 µF (16 V) microcontroller RS IN1 MUTE 11 26 dB/ 20 dB 470 nF 9 OUT1+ 7 OUT1− 17 OUT2+ 19 OUT2− 5 OUT3+ 3 OUT3− 21 OUT4+ 23 OUT4− PROTECTION/ DIAGNOSTIC RS IN2 MUTE 15 26 dB/ 20 dB 470 nF PROTECTION/ DIAGNOSTIC RS IN3 MUTE 12 26 dB/ 20 dB 470 nF PROTECTION/ DIAGNOSTIC RS IN4 470 nF MUTE 14 26 dB/ 20 dB VP PROTECTION/ DIAGNOSTIC TEMPERATURE & LOAD DUMP PROTECTION AMPLIFIER 10 SVR 22 µF 13 16 SGND 2.2 µF (4 × 470 nF) ACGND 8 1 18 24 PGND1 PGND2/TAB PGND3 PGND4 mdb587 ACGND capacitor value must be close to 4 × input capacitor value. For EMC reasons, a capacitor of 10 nF can be connected between each amplifier output and ground. Fig.26 Test and application diagram. 2004 Feb 24 44 (1) See “Supply decoupling”. Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ Supply decoupling (see Fig.26) The high frequency 220 nF decoupling capacitors connected to power supply voltage pins 6 and 20 should be located as close as possible to these pins. It is important to use good quality capacitors. These capacitors should be able to suppress high voltage peaks that can occur on the power supply if several audio channels are accidentally shorted to the power supply simultaneously, due to the activation of current protection. Good results have been achieved using 0805 case-size capacitors (X7R material, 220 nF) located close to power supply voltage pins 6 and 20. 2004 Feb 24 45 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ PCB layout handbook, full pagewidth MDB533 Fig.27 Top of printed-circuit board layout of test and application circuit showing copper layer viewed from top. handbook, full pagewidth MDB534 Fig.28 Bottom of printed-circuit board layout of test and application circuit showing copper layer viewed from top. 2004 Feb 24 46 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator DZ 5.6 V Mode TDA8588J; TDA8588xJ Sense GND VP 1000 µF 220 µF CBU on 2200 µF 10 µF (50 V) TDA8588J 22 µF SDA +5V GND SCL 470 nF REG2 10 µF (50 V) GND VP RGND 10 µF (50 V) 2.2 µF 470 nF 10 µF (50 V) off REG5 10 µF (50 V) 4.7 kΩ REG1 REG4 REG3 47 nF on 10 µF OUT OUT RESCAP SGND DIAG off SW1 SW2 IN I2C supply RST RESCAP mdb588 Fig.29 Top of printed-circuit board layout of test and application circuit showing components viewed from top. handbook, full pagewidth 100 nF 220 nF 100 nF 220 nF 10 kΩ 220 nF 47 kΩ 100 nF 100 nF MDB536 Fig.30 Bottom of printed-circuit board layout of test and application circuit showing components viewed from bottom. 2004 Feb 24 47 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ Beep input circuit Beep input circuit to amplify the beep signal from the microcontroller to all 4 amplifiers (gain = 0 dB). Note that this circuit will not affect amplifier performance. TDA8588 ACGND 2.2 µF From microcontroller 1.7 kΩ 0.22 µF 100 Ω 47 pF mdb589 Fig.31 Application diagram for beep input. Noise The outputs of regulators 1 to 5 are designed to give very low noise with good stability. The noise output voltage depends on output capacitor Co. Table 11 shows the affect of the output capacitor on the noise figure. Table 11 Regulator noise figures REGULATOR NOISE FIGURE (µV) at IREG = 10 mA; note 1 Co = 10 µF Co = 47 µF Co = 100 µF 1 225 195 185 2 750 550 530 3 120 100 95 4 225 195 185 5 320 285 270 Note 1. Measured in the frequency range 20 Hz to 80 kHz. Stability The regulators are made stable by connecting capacitors to the regulator outputs. The stability can be guaranteed with almost any output capacitor if its Electric Series Resistance (ESR) stays below the ESR curve shown in Fig.32. If an electrolytic capacitor is used, its behaviour with temperature can cause oscillations at extremely low temperature. Oscillation problems can be avoided by adding a 47 nF capacitor in parallel with the electrolytic capacitor. The following example describes how to select the value of output capacitor. 2004 Feb 24 48 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ EXAMPLE REGULATOR 2 Regulator 2 is stabilized with an electrolytic output capacitor of 10 µF which has an ESR of 4 Ω. At Tamb = −30 °C the capacitor value decreases to 3 µF and its ESR increases to 28 Ω which is above the maximum allowed as shown in Fig.32, and which will make the regulator unstable. To avoid problems with stability at low temperatures, the recommended solution is to use tantalum capacitors. Either use a tantalum capacitor of 10 µF, or an electrolytic capacitor with a higher value. MGL912 handbook, halfpage 20 ESR (Ω) 15 maximum ESR 10 5 stable region 0 0.1 10 1 C (µF) 100 Fig.32 Curve for selecting the value of output capacitors for regulators 1 to 5. 2004 Feb 24 49 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ PACKAGE OUTLINE DBS37P: plastic DIL-bent-SIL power package; 37 leads (lead length 6.8 mm) SOT725-1 non-concave Dh x D Eh view B: mounting base side A2 d B j E A L4 L3 L 1 L2 37 e1 Z w M bp e c Q v M e2 m 0 10 20 mm scale DIMENSIONS (mm are the original dimensions) UNIT A A2 mm 19 4.65 0.60 4.35 0.45 bp c 0.5 0.3 D(1) d 42.2 37.8 41.7 37.4 Dh E(1) e e1 e2 Eh j L L2 12 15.9 15.5 2 1 4 8 3.4 3.1 6.8 3.9 3.1 L3 L4 1.15 22.9 0.85 22.1 m Q v 4 2.1 1.8 0.6 w x 0.25 0.03 Z(1) 3.30 2.65 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT725-1 --- --- --- 2004 Feb 24 50 EUROPEAN PROJECTION ISSUE DATE 01-11-14 02-11-22 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ The total contact time of successive solder waves must not exceed 5 seconds. SOLDERING Introduction to soldering through-hole mount packages The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg(max)). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. This text gives a brief insight to wave, dip and manual soldering. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). Wave soldering is the preferred method for mounting of through-hole mount IC packages on a printed-circuit board. Manual soldering Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds. Soldering by dipping or by solder wave Driven by legislation and environmental forces the worldwide use of lead-free solder pastes is increasing. Typical dwell time of the leads in the wave ranges from 3 to 4 seconds at 250 °C or 265 °C, depending on solder material applied, SnPb or Pb-free respectively. Suitability of through-hole mount IC packages for dipping and wave soldering methods SOLDERING METHOD PACKAGE DIPPING WAVE DBS, DIP, HDIP, RDBS, SDIP, SIL suitable suitable(1) PMFP(2) − not suitable Notes 1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 2. For PMFP packages hot bar soldering or manual soldering is suitable. 2004 Feb 24 51 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ DATA SHEET STATUS LEVEL DATA SHEET STATUS(1) PRODUCT STATUS(2)(3) Development DEFINITION I Objective data II Preliminary data Qualification This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. III Product data This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Production This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. 3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. DEFINITIONS DISCLAIMERS Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Right to make changes Philips Semiconductors reserves the right to make changes in the products including circuits, standard cells, and/or software described or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. 2004 Feb 24 52 Philips Semiconductors Product specification I2C-bus controlled 4 × 50 Watt power amplifier and multiple voltage regulator TDA8588J; TDA8588xJ PURCHASE OF PHILIPS I2C COMPONENTS Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011. 2004 Feb 24 53 Philips Semiconductors – a worldwide company Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: [email protected]. SCA76 © Koninklijke Philips Electronics N.V. 2004 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands R32/01/pp54 Date of release: 2004 Feb 24 Document order number: 9397 750 11401